Neisseria meningitidis serogroup W-135 disease in adults.
D000367:Age Factors; D006801:Humans; D008297:Male; D008875:Middle Aged; D009345:Neisseria meningitidis / Q000145:classification / Q000302:isolation & purification; D010493:Pericarditis / Q000209:etiology* / Q000382:microbiology; D013492:Suppuration